Pump



Sept. l, 1931. w. c. HEATH ET-AL PUMP - 5 Sheets-Sheet .2

Filed Aug. 20, 1924 W. C. HEATH yET AL PUMP Filed Aug. 2o, 1924 A 5 Sheets-Sheet 3 Patented Sept. l, 1931 iran. 'STAT ES PATENT OFFICE WILLIlAlYl C. HEATH AN'D FRANKLIN G. HOBART, 0F BELOIT, WISCONSIN, AASSIGNORS T FAIRBANKS, MORSE & C0., OF CHICAGO, ILLINOIS, A CORPORATION'OF ILLINOIS 'i rum Application led August 20, 1924. Serial No. 733,083.

This invention relates to improvements in pumps, and more partieularl toqimprovements in deep well pumps employing an 'electric motor for'driving purposes; and .has as its objects economical manufacture, ease of testing, compactn'ess and pleasing appearance. v

Another object of our invention is the secur- I ing of a self-oiling pumping mechanism which is protected from dust and is quiet running with a minimum of friction.

Another objectfof our invention is to pre vent the lubricant from the mechanism from getting into the well.

Another object of our-invention is to provide a pumping mechanismV which permits the removal of the well-pipe with operating rods,`cylinder, etc., without disturbing the base containing the motor and other operating mechanism.

Our invention will be best'understood from the following description and drawings showing a preferred form'.

In the drawings Fig. 1 is a plan view of a pump embodying apreferred form of our invention; Fig. 2 is a sectional end view taken along the plane 2 2 indicated in Fig. A1; Fig. 3 is a fragmentary sectional elevation taken along the plane 3'-3indicated in Fig. 1; Fig. 4 isa sectional elevations-taken j along the plane 4-4 indicated in Fi". 1; and Llong the plane 5 5 indicated in Figs. 1 and 4. Fig. 6

Fig. 5 is a sectional elevation taken a is a detail of the pump head. y Y

Referring by numerals to thedrawings, a vertical motor 5 is here shown driving the worm 6 throughthe vertical shaft 7 Aand, coupling 8. This worm 6 engages a worm wheel 9, preferably mounted midway on a 4horizontal shaft 1Q, carried in the bearing 11 sit uated on either side of the worm wheel 9.

' Beyond the bearing there may be at each end of shaft 10 duplicate cranks 12.- Each crank 12 drives by a connecting rod 13 onto a bell crank 14, swinging freely on a stationary sha ft 15, the connecting rod 13 being attached to bell crank14by means of pin joint 16.

Each Ibell'crank imparts a vertical movement to a piston-like lslide 17, through a short connecting rod18, there being a pin joint19 for the attachment ofthe rod to the bell crank 14, and a pinl joint 20 for the attach-- ment of this rod to the slide 17,. To the top of the two slides 17 is preferably fastened a cross bar 21 which carriesl a connection situated preferably" midway between the two slides for' the rigid attachment of a pump. rod 22 extending downward into the well.

The foregoing comprises a preferred means for'translating the high-speed rotating moof' the electricmotor into a` moderate speed pumps.

A worm 6 is preferably carried 1n a lower f bearing 23 and an upper hearing 24 in a frame 'reciprocatory'motion suitahle'for deep well the pin bearing 15, for the bell crank fulcrum.

This frame 25 is preferably secured, either by bolting, casting or other means, to an upper plate or cover 26, on the upper portion of'wh'ich is mounted thejmotor 5. Plate 26 forms a cover for a containing box 27, which i Cover is preferably oil tight. The box 27 may be partially or almostcom'pletely filled with lubricating oil.' Box 27 preferably has two -hollow projections in which are located elle bell cranks andthe'lower end of the slides endl of-the well pipe may be located a diferential plunger 28.

The plunger 28 preferablyoperates in a differential cylinder 43 which may be attached directly to the pumphead 42. Below the cylinder 43 may be attached any suitable form of outlet itting'snchaas '44 adapted to receive the well pipe at-45, and any suitable form of outlet valve (not shown) Aat 46. An

opening 47 ma be provided, to be closedby any sultable orm of plug or vcover (not shown) to provide access to theoutlet valve. In case the pump is to operate in a locality subject to `heavy frosts, it is desirable to install the diiferential plunger and cylinder and the outlet fitting below ground in which easel y another head (not shown) 'corresponding to head 42 may be provided and the cylinder 43 f 'plunger 28 and into the cylinder space above it. In our device we preferably make the chamber in the pump head 42 with a substantially greater volume than the maximum displacement volume of the plunger 28 and also preferably provide a drain opening in the ottom of pump head 42.` After the cylinder zo. 43 becomes full of this leakage w-ater, any

further leakage will be carried away by the drain 48 and on starting the pump there will be no overflow from the pump head 42 since the chamber islarge Aenough to take care of the maximum amount of water displaced by the plunger 28 from the cylinder 43.

' As a means for centering the well pipe, the lower surface of the pump head'42 is preferably iianged and machined concentric with the cylinder 43 and is preferably arranged to rest on the top edgeof box 27 and fits loosely in a concentrically bored Iout portion of the bottom iiange 50 of cover 26.-

An air compressor 29 may be providedyoperated by bar 30 through arm 31. A side cover 32 and a top cover 33 may be used.

The electric motor may be mounted onto cover 26 by turning down the end plate 34 of the motor to a definite size -sQ as to permit it entering an opening inthe cover 26. The motor may be held down by means of the bolt lugs 35, andvbetween these'A bolt lugs may be situated v openingggs to permit the circulation of air between the end plate 34 and the cover A s 26 so as to facilitate the ventilation ofgthe motor 5. A plate or other suitable device, preferabl of sheet metal,ma'y be providedto prevent -t e dust in this circulating air from getting downinto the working parts. Plate 36 maybe arranged to fit closely around the motor bearing and to draw down with some force against a kseatf 37 .on cthe cover 26.I

The container or boxl 27vr containing the operatlng mechanisni'submerged in lubricatmg o11 may have a drain opening 38, while the entire top is openI suiiiciently so that the entire operating mechanism attached to cover may beinverted into the box. This makes it possible to remove the entire operating mechanismfrom'the box, and to run the same apart from the pump.

Provision may be made for'the return of such -lubricating oil as ma work up past the slide or guides 17 byempl'oying some means such as a passage 39 which leads back into space 40, from which such oil will drain back mechanism depending7 below the cover intol the chamber, said mechanism being supported y by, and removable with thefcover structure,

and including a driving member and a pumpactuating member, said members extcndingf through the cover.l

2. In a pump power head, an enclosing chamber, a structure removably supported by said chamber, comprising a cover having openings therein, a motr, mounted on said' cover, and pump-operating mechanism depending below the cover into the chamber, and removable with said cover, said mechanism including pump actuating members operating through the openings'in said coverf 3. Inl a pump operating unit, an enclosure, a cover therefor, azsource of rotar motion, for driving said unit, and means depending from the cover into said enclosure, for transtion, and means extending through the cover adapted for applying the translated motion.

' lating rotary motion into reciprocatory mo- 4. In'a pump 'operating unit, a chamber adapted to contain oil, a cover therefor, asource of lrotary motion for driving said unit, a rotary drive shaft, extending vertically into said chamber, and means depending from the cover into said oil chamber, for translating rotary motion into reciprocatory motion, and a member extending.'y vertically from said chamber, adapted for applying the translated motion.

5. In a power head, a chamber having an opening for a driving member. and an openlng for a reciprocating power takeoff member,' said openings being in the same wall and in an upper portion of the chamber andl pump-operating mechanism suspended within the chamber, adapted for' connection with said member, and adapted to be freely re# moved, as a unit, from said chamber.

6. In apower head, a'chamber adapted to contain oil, a cover therefor, a rotary driving unit lcarried by the cover, and means depending from the cover for translating rotary motion from the driving unit, into reciprocatory motion, and adapted to be removed/with member arranged for reciprocating ,moveaio vthe cover, said meansi'rncluding a driven I ment through the cover and adapted for conn nection with a pumpor the like.

` 7. A pump operating unit including a lmotor,' a chamber adapted to contain oil,

pump operating mechanism in said-chamber, a shaft extending from the motor vinto/ the chamber, for driving the operating mechanism, a` bearing for said shaft above the level of the oil in said chamber, a vertically reciprocating slide driven by` said mechanism, saidslide adapted to lnove into and raise lthe oil for use in said bearing, and an oil passage extending from a point adjacent said slide, and directed to said bearing.

8. In a pump operating unit, a chamber having a detachable closure portion adapted to contain a supply of' oil and driving mechanism in said-chambcr, a worm shaft extending into said chamber for operating said mechanism, a plurality of bearings for said shaft., and a bracket serving as a mounting for said bearings, said b acket being carried at one side of said closure portion, and cxtcnding substantially fronisaid closure portion to the opposite wall portion of the chamber.

9. In xa pump Aoperating device, an oil chamber, a. cov .r therefor, pump ope 'ating disposed above the oil and suspended from said cover, said slide being adapted to move into theoilof the chamber to apply oil directly to the guide and to raise the oil for use in said bearing, and means for' directing oil from said guide to said bearing.

l0. 1n a pump operating apparatus, an oil container, a cover therefor, pump operating means supported by the cover and including a bearing suspended from the cover and a slide adaptedlto move into the oil of said container and to raise the oil for use in said bearing, above the level'of the oil, and means on said cover for conveying such oil to the bearing.

11. Ina power head, a chamber, a bearing member adapted as a support for driving means and suspended into said chamber, driving means carried by said bearingfor translating rotary Ainto reciprocatory motion, slides associated with the driving means and adapted to extend into said chamber, connect ing means between said slides and said translating mea-ns, and means for relating the slides to apparatus to be drivenby the powerv head.

12. A power head including a driving unit, a hollow base distinct from, alid serving as a support for the driving unit, operating mechanism within said base, and operatively connected with the driving unit, a cross head outside and above the base,-`associated with said mechanism to receive a reciprocating movement therefrom, and a connection on wheel, a. slide for each of said cranks, consaid cross head for'operatively relating the power head and apparatus to be driven thereb Y '13. n a pump loperating device, an oil containing chamber, substantially enclosing said device, a cross head outside of said chambersslides rigidly attached to opposite ends of the cross head, and extending downwardly into the chamber;operating mechanism working in said oil containing chainber, a member attached to said cross head, between the slides and externalto said olil containing chamber, and adapted for connection with a pump, or the like, to be driven.

14. In a pump driving apparatus, a chain-- ber, anG assembly of operating elements` coinprising arotating member, means for translating rotary motion into reciprocatory mo tion, and a reciprocating member, operated from said translating means; a removable cover for said chamber, said assembly depending from said cover, into said chamber, and means extending through said cover and. adapted for o eratively connecting the reciprocating mem er to a pump or the like to be driven by said apparatus.

15. In a pump operating apparatus, an enclosure adapted to contain oil, a cover therefor, driving mechanism including a slide operating through said cover, a bell-crank lever associated with the slide and depending from said cover, a crank adapted to oper ate said slide through said bell-crank lever, a drive shaft connected with said crank, and means for connecting the slide with a pump or the like to be driven, said lever, crank and shaft being disposed in self-oiling relation in said enclosure. y

16. In a power head, an enclosure, a sup.- porting element associated with the enclo. sure, mechanism suspended from, and removable as a unit with, said element, the mechanism comprising a worm, a shaft, a worm wheel thereon, a crank on each side of said necting means between said cranks and said slides, slide guides attached to said supporting element, and means for connecting said slides to driven apparatus. c

17. In a pump operating mechanism, a housing therefor, a supporting member for said mechanism forming a removable element of said housing, said mechanism depending fromsaid member, and comprising a worm, a shaft, a warm wheel thereon, a crank on each side of said wheel, -a slide for cach Vof said cranks, bell-crank levers between said cranks -and said slides, slide guides attached tousaid supporting member, a motor carried by said supporting member for driving said worm,.and means for operatively to be driven by said mechanism.

relating said slides with a pump or the like an oil container for the mechanism, a. cover for said chamber having an opening substantially between the urcations of sald base, a motor carried' onsaid cover, driving caring operated by the motor and suspende below the cover, and adapted to be lubricated by oil in the chamber base, said motor andl driving, gearing/ being adapted for ready removal with said cover.

WILLIAM C. HEATH.

FRANKLIN G. HOBART'. 

